Youth worker Eric Caffrey said he had witnessed an increase in “violence, aggression and dangerous unpredictability” as a result of young people using alcohol, cannabis and benzodiazepine together.

Mr Caffrey, who is the project manager of Core Youth Service in Inchicore, cited one 14-year-old boy who had started on benzodiazepine and picked up 25 charges in a six month period including assault, stabbing and kidnapping.

Mr Caffrey told the seminar at the European Parliament buildings in Dublin, that young people are looking for blackout and memory loss as a result of taking the drugs.

“It must be very inviting, the opportunity to blackout pain and memories for a short period but the unfortunate side effect is the destruction caused,” he said.

‘Out of character’

“They often commit offences totally out of character or against their nature. I have also spoke to numerous young people with charges for offences they have absolutely no recollection of committing.”

Solas project chief executive Eddie D’Arcy said benzodiazepine is the “drug of choice on the streets at the moment”.

He warned that young people who took drugs were “among the most erratic and challenging” people that he dealt with.

He warned that the use of the drug among young people could lead to them developing psychiatric conditions later in life.

“This is a problem in all major cities,” he said. “but young people don’t see it as a problem. They are enjoying it.”

Minister for State for Health Promotion and the National Drugs Strategy Catherine Byrne told the conference that two out of three deaths from drugs are due to poly-drug use and benzodiazepine is the most common group involved in such deaths.

She said the HSE’s medicines management programme has issued a guidance document for prescribers about benzodiazepine and the dangers of their long-term use.

She hoped that the new guidelines will lead to a reduction in the long-term inappropriate use of these drugs.